Multiple use hand operated piston pump

ABSTRACT

The multiple use hand operated pump consists of a rhomboid head ( 1 ), a mountable curve shaped outlet part ( 3 ), a pumping pipe part ( 2 ) with a special base ( 9 ) bearing valve ( 12 ) and a liquid inlet ( 13 ). A piston ( 4 ) with external grip ( 5   a ) on its upper end and an especially constructed valve ( 5,6,7,8 ) on its lower end, as well as a tapered component ( 14 ) constituting means of supporting, stablelising and mounting of the pipe part ( 2 ) of the pump on any liquid container.

[0001] The present invention relates to a hand operated piston pumphaving a multiple use possibility, that is invented and at firstsupplied in the market by exclusively and only me.

[0002] Prior art has to demonstrate pumps as such, the majority of whichhave serious dissadvantages making their use difficult, time delayingand ineffective.

[0003] Said prior art dissadvantages result because of the presence ofonly a single part of pipe constituting the main pump body, as well astheir constructive details.

[0004] Specifically, the simple bearing no support. means pump possessesthe dissadvantage of absence of support and stabilisation of any kind onthe container mouth, as there usually exists a diameter differencebetween the container mouth and the pump part immersed into the liquidto be pumped and it is because of this that the user is faced up withthe problem to either have help or hold the pump tight and steady withone hand, at the point where the pump pipe is in contact with thecontainer mouth and carry out pumping with the other hand, with thisresulting to a time delaying and tiring process.

[0005] Refering to pumps bearing a fixed support means on the liquidcontainer mouth, has to be pointed out that their use is restricted tocontainers of certain height only, because as it is obvious said fixedsupport means limitates the pipe length to that part immersed into thecontainer of larger diameter, with this resulting to incomplete pumpingin case that said pump is used for containers of larger diameter, forthe reason that access of the pump pipe in so far as the containerbottom, would be impossible.

[0006] With this invention is presented a hand operated piston pump,that eliminates all dissadvantages of all known prior art pumps, as thedetails and characteristics constituting it, widen its use further forliquid pumping from different height and capacity containers andmoreover for other uses such as cleaning of swimming pools, garden pondsand fountains, sea vessels, etc and they ensure stable, fast, easy andcomplete liquid pumping.

[0007] An important constructive detail of the hand operated pump of theinvention is that it bears a rhomboid head for liquid storage duringpumping, with this resulting to non-interrupting entirely the feeding ofpumped liquid towards the outlet point with continuous reciprocatingmotion, as well as the possibility of air escape through the outletpoints on one hand and the pumping time reduced by half as compared withthe pumping time required for the same amount of liquid using a priorart pump on the other.

[0008] A further important constructive detail of the hand operated pumpof the invention is that it bears a valve system constituted by twoparts—a piston valve and a base flap valve—, so that in combination withthe simultaneous operation of both faster, more effective and muchgreater liquid pumping possibility is achieved.

[0009] Moreover another constructive detail of said pump is that itbears a properly formed additional tapered pump support component on theliquid container mouth, having also the possibility of being attachedand stablelised on a container mouth of any diameter dimension and saidtapered component bearing a properly formed pump pipe housing, allowingthe stabilisation of the hose in proper place, as well as its adjustmentfor increasing-decreasing the pump pipe immersed into the liquid, inorder that access to any height of liquid surface is achieved, so thatcomplete pumping is carried out.

[0010] The use of the hand operated pump of the invention can be widenedto the cleaning of swimming pools, garden ponds fountains, etc, from anykind of dirt, by simply applying a special dirt retaining filter at theoutlet point, whereas in another embodiment it may bear an oblongflexible pipe for liquid transfer to other containers.

[0011] The object of this invention will be fully comprehended withreference to the drawings accompanying it, where it is showndescriptively in a non-restrictive way as a whole and will all sidedetails constituting it, where :

[0012]FIG. 1 is a face view of the hand operated piston pump, bearing atapered componed.

[0013]FIG. 2 is a section of the hand operated piston pump.

[0014]FIG. 3 is a section of the detail of the inlet point and the valvesystem.

[0015]FIG. 4 is a face view of the hand operated piston pump bearing notapered component.

[0016]FIG. 5 is a face view of the tapered component.

[0017]FIG. 6 is a section of the tapered component.

[0018]FIG. 7 is face view of the hand operated piston pump bearing afilter at the outlet point, and

[0019]FIG. 8 is a face view of the hand operated piston pump bearing anoblond flexible pipe at the outlet point.

[0020] Specifically, the hand operated piston pump is constituted by amain part with a rhomboid head (1), a pumping pipe part (2), the lowerend of which bears a special base with a flap valve (12) at the liquidinlet point (13), which base (9), is properly fixed at the lower end ofthe pipe part (2) by means of a housing, created by an internalprojection (10) and an external projection (11). The flap valve (12)having an opening-closing possibility at the liquid inlet point. Apiston (4) bearing a grip (5 a) on its upper external end and anescpecially constructed valve (5,6,7,8) on its lower end, movable withinthe pipe parts (1) and (2), said valve being constituted by a mainpart-plastic membrane (8), an auxiliary mounting ring (7), an upper lockvalve support (5) and a lower lock valve support (6). Externally, at thepipe part (2) it bears a tapered component (14) for supporting,stablelising and mounting of said pump pipe, having external supportrings (15) for supporting of the pump on containers having various mouthdiameter dimensions and a guide (16) for increasing-deacreasing the pumppipe part, immersed into the liquid, as well as the pump stablesing,whereas at the outlet point (3) there is mounted an additional curveshaped pipe part. Moreover for further applications such as cleaning ofswimming pools, garden ponds, fountains, sewage etc., there is attacheda dirt retaining filter (17), or alternativelly for other kind of use,such as the pumping from the internal of boats or, sea vessel engines,the tranfer of liquid from one steady fixed container to another spacedapart steady fixed container, etc there is attached an oblong flexiblepipe (18).

[0021] It has to be mentioned at this point that the rhomboid head ofthe pump, bears an opening (1 a) for the insertion and operation of thepiston (4), which opening (1 a) has such a diameter so that there existsa little gap, allowing air escape, with this resulting to storage,additional feeding and directing of the liquid from said compartment (1)towards the outlet point (3) during continuous pumping.

[0022] Moreover the rhomboid shape of the head (1) in combination withthe opening (1 a) and the outlet point (3) create an open circuit,ensuring much greater and faster pumping possibility, for the reasonthat there exists a retaining and storage of a considerable amount ofliquid within the aforesaid rhomboid compartment (1), with thisresulting to the possibility of use of the pump in further applications,such as the water pumping from boats, barrels etc.

[0023] The valve system (5,6,7,8), the piston (4) and base flap valve(9,10,11,12,13), which could be characterised as a composite operationsystem, ensures the pumping because it is achieved as follows:

[0024] During the first pulling of the piston (4) action in an upwardsdirection, the air from the point (1 a and 3) of the rhomboid head (1)is removed, with this resulting to simultaneous liquid inlet through theflap valve (12) of the base. With continuing the reciprocating piston(4) movement, pumping is thereon achieved mechanically by means of thepiston valve (5,6,7,8 ), transfering the liquid towards the outlet pointand storing some amount of liquid into said rhomboid compartment (1) atthe same time, which liquid is finally discharged from the outlet mouth(3).

[0025] It must be mentioned at this point that the hand operated pistonpump of the invention is made of plastic, mental or any other suitablematerial available, for eadible and drinkable liquids or for industrialand any other use liquids.

[0026] Furthermore, it has to particularly be emphasized that thisdescription is based upon certain indicative and not at all limitativeembodiments of the invention, without making reference to exact total orpartial dimensions—heights, diameters etc.—which may be alteredaccording to requirements of use each time.

[0027] Additionally, it has to particularly be emphasized that the shapeof the tapered component for supporting, stablelising and mounting ofthe pump pipe onto the container mouth, as well as the dimensions ofsaid tapered component may be altered, in order that there will thepossibility of the pump mounting and pumping extensively, from anycontainer, having any mouth diameter dimension and any other thancircular shape of mouth.

[0028] Conclusively, any modification of the object of the invention, asregards its total or partial dimensions as well as the dimensions of itsadditional components, of its components' shape or of its material ofmanufacture by any party will intend to copying and unfair competition,causing punishment as provided by law.

1.- Multiple use hand operated piston pump, characterised in that itconsists of a main part with a rhomboid head (1), a mountable curveshaped outlet part (3), a pumping pipe part (2) with a special base (9)bearing a valve (12) and a liquid inlet point (13). A piston (4) withexternal grip (5 a) on its upper end and an especially constructed valve(5,6,7,8) on its lower end, as well as a tapered component (14)constituting a means of supporting, stablelising and mounting of thepipe part (2) of the pump on any liquid container mouth. 2.- Multipleuse hand operated piston pump, as in claim 1, characterised in that thespecial base (9) bears an especially formed housing of the pumping pipe(2), said housing formed by an internal projection (10) and an externalprojection (11), so as to be fixed at the lower end of said pipe part(2), whereas the valve (12) which is being fixed at the liquid inletpoint (13) has an opening-closing possibility. 3.- Multiple use handoperated piston pump, as in claims 1 an 2, characterised in that theespecially constructed valve that it bears at the lower end of thepiston (4) consists of a main part-plastic membrane (8), an auxilliarymounting ring (7), an upper valve lock support. (5) and a lower valvelock support (6). 4.- Multiple use hand operated piston pump, as inclaims 1, 2 and 3, characterised in that the rhomboid head (1) bears anopening (1 a) for the insertion and operation of the piston (4), saidopening having such a diameter so that there exists a little gap,allowing air escape with this resulting to storage, additional feedingand directing of the liquid from said rhomboid compartment (1) towardsthe outlet point (3) during continuous pumping. 5.- Multiple use handoperated piston pump, as in claims 1, 2, 3 and 4, characterised in thatthe tapered component (14) is a supporting, stablelising and mountingmeans of the pumping pipe (2), with these being achieved with rings (15)that give the possibility of supporting and mounting of the pump onliquid containers having different diameter dimensions, whereas theguide (16) allows increase-decrease of the immersed into the liquid pipepart (2) as well as the stablelising of the pump at the right place. 6.-Multiple use hand operated piston pump, as in claims 1, 2, 3, 4 and 5,characterised in that its use can be widened for cleaning of gardenponds, swimming pools, fountains i sewage etc., by adding a dirtretaining filter (17) at the outlet point (3) or alternativelly forother uses, such as pumping from inside of boats or sea vessel engines,the transfer of liquid from one steady fixed container to another spacedapart steady fixed container etc, by adding of an oblong flexible pieceof pipe. 7.- Multiple use hand operated piston pump, as in claims 1, 2,3, 4, 5, 6 and 7, characterised in that the rhomboid head, incombination with the opening (1 a) and the outlet point (3) create anopen circuit assuring a much greater and faster pumping possibility dueto retaining and storage of a signigicant amount of liquid within saidromboid compartment (1) which finally feeds with extra liquid the outletpoint (3) during the reciprocating movement process of the piston (4),resulting to the multiple rise adcantage of the pump. 8.- Multiple usehand operated piston pump, as in claims 1, 2, 3, 4, 5, 6, and 7,characterised in that the valve system (5,6,7,8), piston (4) and basevalve (9,10,11, 12,13), which could be characterised as a compositeoperation system ensures pumping, as follows: During the first pullingaction of the piston (4) in an upwards direction, the air from thepoints (1 a and 3) contained in the romboid head (1) is removed, withthis resulting to simultaneous liquid inlet through the flap valve (12)of the base. With continuing reciprocating movement of piston (4),pumping process is thereon achieved in an mechanical way by means of thevalve (5,6,7, 8) of the piston (4), which tranfers the liquid towardsthe outlet point, through the romboid head (1), that finally comes outof the outlet mouth (3). 9.- Multiple use hand operated piston pump, asin claims 1, 2, 3, 4, 5, 6,7, and 8, characterised in that it may beconstructed in any total or partial dimensions of the componentsconstituting it—height, diameters etc.—according to requirements of useeach time 10.- Multiple use hand operated piston pump, as in claims 1,2, 3, 4, 5, 6, 7, 8 and 9, characterised in that the shape, design anddimensions of the tapered component (14) may be altered, in order thatthere will be the posibillity of mounting and stablelising of the pumpin any container of different height and capacity as well as ofdifferent shape of mouth containers.